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## org.apache.catalina.ssi
Class SSIServletExternalResolver

    java.lang.Object
      org.apache.catalina.ssi.SSIServletExternalResolver

All Implemented Interfaces:
  SSIExternalResolver

public class SSIServletExternalResolver
extends java.lang.Object
implements SSIExternalResolver

An implementation of SSIExternalResolver that is used with servlets.

Version:
  $Revision: 1.3.2.1 $, $Date: 2004/09/01 16:31:01 $
Author:
  Dan Sandberg

Nested Class Summary
`protected class` | `SSIServletExternalResolver.ServletContextAndPath`

Field Summary
`protected int` | `debug`
`protected boolean` | `isVirtualWebappRelative`
`protected javax.servlet.http.HttpServletRequest` | `req`
`protected javax.servlet.http.HttpServletResponse` | `res`
`protected javax.servlet.http.HttpServlet` | `servlet`
`protected java.lang.String[]` | `VARIABLE_NAMES`

Constructor Summary
`SSIServletExternalResolver(javax.servlet.http.HttpServlet servlet, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, boolean isVirtualWebappRelative, int debug)`

Method Summary
`void` | `addVariableNames(java.util.Collection variableNames)` Adds any external variables to the variableNames collection.
`protected java.lang.String` | `getAbsolutePath(java.lang.String path)`
`protected java.lang.String` | `getCGIVariable(java.lang.String name)`
`java.util.Date` | `getCurrentDate()` Returns the current date.
`long` | `getFileLastModified(java.lang.String path, boolean virtual)`
`long` | `getFileSize(java.lang.String path, boolean virtual)`
`java.lang.String` | `getFileText(java.lang.String originalPath, boolean virtual)`
`protected java.lang.String` | `getPathWithoutContext(java.lang.String servletPath)`
`protected java.lang.String` | `getPathWithoutFileName(java.lang.String servletPath)`
`protected java.lang.Object` | `getReqAttributeIgnoreCase(java.lang.String targetName)`
`protected SSIServletExternalResolver.ServletContextAndPath` | `getServletContextAndPath(java.lang.String originalPath, boolean virtual)`
`protected SSIServletExternalResolver.ServletContextAndPath` | `getServletContextAndPathFromNonVirtualPath(java.lang.String nonVirtualPath)`
`protected SSIServletExternalResolver.ServletContextAndPath` | `getServletContextAndPathFromVirtualPath(java.lang.String virtualPath)`
`protected java.net.URLConnection` | `getURLConnection(java.lang.String originalPath, boolean virtual)`
`java.lang.String` | `getVariableValue(java.lang.String name)`
`protected boolean` | `isNameReserved(java.lang.String name)`
`protected boolean` | `isRootContext(javax.servlet.ServletContext servletContext)`
`void` | `log(java.lang.String message, java.lang.Throwable throwable)`
`protected java.lang.String` | `nullToEmptyString(java.lang.String string)`
`void` | `setVariableValue(java.lang.String name, java.lang.String value)` Set the named variable to the specified value.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### VARIABLE_NAMES

    protected final java.lang.String[] VARIABLE_NAMES

### servlet

    protected javax.servlet.http.HttpServlet servlet

### req

    protected javax.servlet.http.HttpServletRequest req

### res

    protected javax.servlet.http.HttpServletResponse res

### isVirtualWebappRelative

    protected boolean isVirtualWebappRelative

### debug

    protected int debug

Constructor Detail

### SSIServletExternalResolver

    public SSIServletExternalResolver(javax.servlet.http.HttpServlet servlet,
                                      javax.servlet.http.HttpServletRequest req,
                                      javax.servlet.http.HttpServletResponse res,
                                      boolean isVirtualWebappRelative,
                                      int debug)

Method Detail

### log

    public void log(java.lang.String message,
                    java.lang.Throwable throwable)

  Specified by:
    `log` in interface `SSIExternalResolver`

### addVariableNames

    public void addVariableNames(java.util.Collection variableNames)

  Description copied from interface: `SSIExternalResolver`
  Adds any external variables to the variableNames collection.

  Specified by:
    `addVariableNames` in interface `SSIExternalResolver`
  Parameters:
    `variableNames` - the collection to add to

### getReqAttributeIgnoreCase

    protected java.lang.Object getReqAttributeIgnoreCase(java.lang.String targetName)

### isNameReserved

    protected boolean isNameReserved(java.lang.String name)

### setVariableValue

    public void setVariableValue(java.lang.String name,
                                 java.lang.String value)

  Description copied from interface: `SSIExternalResolver`
  Set the named variable to the specified value. If value is null, then the variable will be removed ( ie. a call to getVariableValue will return null )

  Specified by:
    `setVariableValue` in interface `SSIExternalResolver`
  Parameters:
    `name` - of the variable
    `value` - of the variable

### getVariableValue

    public java.lang.String getVariableValue(java.lang.String name)

  Specified by:
    `getVariableValue` in interface `SSIExternalResolver`

### getCGIVariable

    protected java.lang.String getCGIVariable(java.lang.String name)

### getCurrentDate

    public java.util.Date getCurrentDate()

  Description copied from interface: `SSIExternalResolver`
  Returns the current date. This is useful for putting the SSI stuff in a regression test. Since you can make the current date a constant, it makes testing easier since the output won't change.

  Specified by:
    `getCurrentDate` in interface `SSIExternalResolver`
  Returns:
    the data

### nullToEmptyString

    protected java.lang.String nullToEmptyString(java.lang.String string)

### getPathWithoutFileName

    protected java.lang.String getPathWithoutFileName(java.lang.String servletPath)

### getPathWithoutContext

    protected java.lang.String getPathWithoutContext(java.lang.String servletPath)

### getAbsolutePath

    protected java.lang.String getAbsolutePath(java.lang.String path)
                                        throws java.io.IOException

  Throws:
    `java.io.IOException`

### getServletContextAndPathFromNonVirtualPath

    protected SSIServletExternalResolver.ServletContextAndPath getServletContextAndPathFromNonVirtualPath(java.lang.String nonVirtualPath)
                                                                                                   throws java.io.IOException

  Throws:
    `java.io.IOException`

### getServletContextAndPathFromVirtualPath

    protected SSIServletExternalResolver.ServletContextAndPath getServletContextAndPathFromVirtualPath(java.lang.String virtualPath)
                                                                                                throws java.io.IOException

  Throws:
    `java.io.IOException`

### isRootContext

    protected boolean isRootContext(javax.servlet.ServletContext servletContext)

### getServletContextAndPath

    protected SSIServletExternalResolver.ServletContextAndPath getServletContextAndPath(java.lang.String originalPath,
                                                                                        boolean virtual)
                                                                                 throws java.io.IOException

  Throws:
    `java.io.IOException`

### getURLConnection

    protected java.net.URLConnection getURLConnection(java.lang.String originalPath,
                                                      boolean virtual)
                                               throws java.io.IOException

  Throws:
    `java.io.IOException`

### getFileLastModified

    public long getFileLastModified(java.lang.String path,
                                    boolean virtual)
                             throws java.io.IOException

  Specified by:
    `getFileLastModified` in interface `SSIExternalResolver`
  Throws:
    `java.io.IOException`

### getFileSize

    public long getFileSize(java.lang.String path,
                            boolean virtual)
                     throws java.io.IOException

  Specified by:
    `getFileSize` in interface `SSIExternalResolver`
  Throws:
    `java.io.IOException`

### getFileText

    public java.lang.String getFileText(java.lang.String originalPath,
                                        boolean virtual)
                                 throws java.io.IOException

  Specified by:
    `getFileText` in interface `SSIExternalResolver`
  Throws:
    `java.io.IOException`

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